NPROFESSIONAL, SCIENTIFIC AND TECHNICAL ACTIVITIES
Companies in this section provide specialized professional, scientific, and technical services that require high levels of training, certification, and expertise.
This includes law firms, accounting and statutory audit practices, corporate secretarial services, management consulting, architectural practices, engineering design, and commercial market research.
Scientific research and development in biotechnology, material sciences, and commercial industrial design also belong to this category.
Commonly Registered Businesses
Key SSIC 2025 ActivitiesMost frequent business registrations, commercial entities and popular sub-classes in Section N:
Management consultancy services
Strategic business advisory, corporate reorganization and operational improvement consulting
Accounting, auditing and tax consultancy
ACRA-registered public accountants, corporate tax advisory, and financial auditing
Legal activities
Law practices, advocates, solicitors and corporate legal counsel services
Engineering design and consultancy activities
Professional engineering design, structural engineering, and infrastructure consulting
Architectural services
BOA-registered architectural practices designing residential and commercial structures
Advertising activities
Creative advertising agencies, digital marketing campaigns and media planning
Official SingStat Definition & Scope
This section includes specialised professional, scientific and technical activities. These activities require a high degree of training, and make specialised knowledge and skills available to users. Activities performed include: legal; accounting, architectural, engineering, and specialized design services; consulting services; research services; advertising services; photographic services; translation and interpretation services; veterinary services.
Cross-References & Exclusions (Classified Elsewhere)
- • activities of holding companies, see 6420
- • provision of general office administration services, see 82110